Hankammer, Otto A. The art of block cutting Otto A. Hankammerand F.C. Lampe; with illustrations designed and cut by the authors and contributing artists. - Chicago, Ill. F.C. Lampe 1930. - 162 p. ill. (part col.) Bibliography: p. 161-162. LCCN: Subjects--Topical Terms: Engraving--Technique.